| A | B |
|---|
| active transport | the movement of a sub. low concentration to high. requires energy |
| chromosomes | chromatin condenses to make chromosomes |
| cell theory | everything alive is made of cells. they are the smallest working units. come from preexisting cells |
| Anton Van Leeuwenhoek | made light mic. in the 1600s. animalcules and protozoa |
| contractile vacuole | special structure to collect and get rid of water |
| Theodor Schwann | 1839 animal cells |
| nucleus | contains DNA.contains muceolus. |
| nuclear envelope | 2 membranes make it up |
| nucleolus | site where ribosomes are a ssembled |
| lysosomes | saclike membranes filled w/ chem. and enzymes that break down sub. |
| ribosomes | tiny particles made of RNA and proteins.where proteins are assembled. |
| facilitated diffusion | lets only certain sub. in & out.only if the sub. are dissolved in lipids.water can. |
